Automatic On/Off: Access the device via the USB interface, without external power supply, it automatically turns on and off with the status of the connected device. Plug and Play: No need to install additional software and drivers, just connect the Bluetooth transmitter to connect easily. Widely Compatible: Allows TVs, computers, cars, and other devices to add Bluetooth functionality, enabling them to connect to Bluetooth speakers, headphones, and other audio playback devices. Low Latency and High Quality: The stable Bluetooth signal transmission capability allows the device to maintain high definition within an effective distance of 10 meters without freezing. The AptX audio codec can achieve hi-fi stereo and provide a better experience. Wireless, Enjoy the Peace of One Person: You can enjoy the benefits of Bluetooth audio while exercising, watching late-night TV shows, or just when you want to keep the entertainment to yourself. Bluetooth Version: V4.2 Transmission Distance: 10M Working Time: USB Powered Shell Material: ABS Product Function: Stereo Bluetooth Audio Transmitter Weight (Metal Only): 11.88 grams Weight with Packaging: 65 grams Product Size: 65 x 26 x 11 mm Package Includes: 1 x Bluetooth Transmitter 1 x 3.5 Audio Cable 1 x 3.5 AV Cable for TV